Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Bottom of a pendulum, what is tension
- mikefitz
- · Replies 3 ·
Conservation Laws - conceptual help
- Sabres151
- · Replies 3 ·
Retarding force needed to stop a race car with parachute
- Lelex
- · Replies 2 ·
How Does Fluid Dynamics Explain Pressure Differences and Density Calculations?
- laminar
- · Replies 1 ·
Gravity Q: Adding Mass to Increase G Force & Earth Radius
- Tikiwreck
- · Replies 2 ·
Air Resistance Force on 1.21 g Samara Falling at 1.1 m/s
- ragbash
- · Replies 1 ·
What is the weight of a giant squid in Newtons?
- starfish794
- · Replies 3 ·
Projectile motion(?) solving for Vo
- Pencil
- · Replies 9 ·
Calculating the Angle of Tension in Tightrope Walking: A Physics Problem Solved
- Meowzers
- · Replies 1 ·
Solve Skid's Friction Problem - Calculate Coefficient
- sweetdaisy186
- · Replies 6 ·
Direction of forces (centripetal/friction/tension)
- dnt
- · Replies 1 ·
NH Science Bulletin: Ranking Forces in a Stack of Blocks
- KillianHawkIII
- · Replies 3 ·
Calculating Coyote's Fall and Flight: Motion Question & Final Velocity
- Tikiwreck
- · Replies 1 ·
Calculating Distance of Two Runners' Paths | Runner A vs Runner B
- AladdinSane
- · Replies 2 ·
Plane direction and veloctiy question
- mathzing
- · Replies 1 ·
How Do You Calculate the Acceleration of an Object Using Newton's Laws?
- zeshkani
- · Replies 2 ·
How do charges behave in a spherical conducting shell?
- FrogPad
- · Replies 2 ·
How Does Light Reflect from a Moving Rocket?
- busted
- · Replies 5 ·
Scaling - The Physics of making my mind go crazy.
- 37fox
- · Replies 3 ·
How Does Gauss's Law Explain Electric Flux with External Charges?
- Noesis
- · Replies 5 ·
What is the optimal angle for maximum distance in a shot put throw?
- Asteldoth
- · Replies 4 ·
Projectiles Launced at an Angle
- Tnn Ace03
- · Replies 1 ·
Pulley Problem, 1 crate hanging, 1 crate on an incline
- cd80187
- · Replies 1 ·
Constant Acceleration Plane Problem
- needhelp83
- · Replies 1 ·
Forces and acceleration of pulled rope
- trajan22
- · Replies 8 ·
Finding the mass of two planets
- prlion16
- · Replies 5 ·
Elastic ball , Inextensible string
- Harshatalla
- · Replies 3 ·
NaCl Crystal Reflection: Determining Wavelength & Sinus
- hcchong
- · Replies 1 ·
Finding distance and velocity vectors
- kbowman
- · Replies 1 ·
Calculate Young's Modulus and Change in Diameter of Nylon Rope
- hcchong
- · Replies 1 ·
How Do You Calculate Charge Using Coulomb's Law?
- th77
- · Replies 1 ·
How High Would a Bullet Rise if Fired Straight Up Without Air Resistance?
- needhelp83
- · Replies 2 ·
How small is a water molecule compared to the volume of liquid water?
- hcchong
- · Replies 1 ·
Orbitals, shells, subshells, oh my
- President Mercury
- · Replies 3 ·
Weightless Speed: Find V for Bump Radius 35m
- sweetshelly
- · Replies 6 ·
Help Maximizing Range of Projectile Motion
- Rowah
- · Replies 5 ·
Solving Basic Thermo Questions: Calculating Velocity and Area in an Open System
- rjenkins
- · Replies 1 ·
How Do You Calculate Acceleration from Position and Time Data?
- mixedtape_15
- · Replies 2 ·
Electric Flux of Non-Uniform Field in a Cube: Solving for Flux and Total Charge
- greenmaze
- · Replies 8 ·
Help with Problem: Find Distance Travelled in First 5.0s
- Alanf718
- · Replies 3 ·
Two dimensional motion with constant acceleration problem,
- alexkolb
- · Replies 1 ·
Complicated logarithm problemor at least i think it is
- QuantumKing
- · Replies 11 ·
Force using Newton's second law
- ruthi
- · Replies 1 ·
What equations can be used to determine acceleration in constant motion?
- pieman396
- · Replies 5 ·
Unlock the Power of Conducting Spheres: A Comprehensive Guide
- mb85
- · Replies 7 ·
Calculating Forces and Speed in a Sprinter's 100m Dash
- hkhero
- · Replies 3 ·
How Do You Solve Inclined Plane Problems in Physics?
- pavadrin
- · Replies 6 ·
What is the Velocity at Half the Distance with Constant Acceleration?
- siddharthmishra19
- · Replies 1 ·
Understanding the Constant Speed of Light: A Brief Explanation
- danago
- · Replies 2 ·
Why did I make this error?What is the error in my equation?
- JoAuSc
- · Replies 3 ·
Please, need help for a problem.
- alexkolb
- · Replies 4 ·
Powerboat crossing 370-m river with 1.7 m/s current to reach upstream clearing
- mb8992
- · Replies 3 ·
Finding acceleartion components
- ultrabionic_ang
- · Replies 1 ·
How long was it in the air before returning to Earth?
- Hydrantman001
- · Replies 9 ·
Kinematics - Constant acceleration and friction
- Kaoi
- · Replies 6 ·
Physics Assesment, Physics of Bomby Contests
- Clarky
- · Replies 1 ·
Can You Explain Your Solution Using Pulleys and Friction?
- anthu
- · Replies 1 ·
Solve for Knights' Collision Point
- skud363
- · Replies 4 ·
Centripetal force circular drum question
- Checkfate
- · Replies 6 ·
PHYSICS OF MUSIC: Pitch is organ pipes & vibration spectrum
- Dunkaroos
- · Replies 1 ·
How Can You Design a Ramp for Consistent Ball Rolling?
- Crystal Faye
- · Replies 38 ·
Solving Power/Work Problem: Average Power of Elevator
- Aubiefan
- · Replies 3 ·
Juggling Simulation: Investigating the Relationship Between X & Y Velocity
- Meowzers
- · Replies 1 ·
Is Acceleration Equal to Net Force Divided by Mass in Newton's Second Law?
- jjg242
- · Replies 1 ·
Negative time from Lorentz transformation of event in S
- Orad
- · Replies 3 ·
How Do You Calculate Initial Velocity and Displacement of a Thrown Stone?
- siddharthmishra19
- · Replies 5 ·
Solving Flight & Velocity Problem in Cutnell & Johnson Physics
- mmiller39
- · Replies 3 ·
Why isn't this working 2D Kinematics
- mmiller39
- · Replies 13 ·
Understanding the Relativistic Doppler Effect in Space Travel
- michael879
- · Replies 4 ·
Verifying Newton's Laws: Finding Acceleration & Contact Forces
- konichiwa2x
- · Replies 3 ·
Another aggravating kinematics problem - regarding stones
- OVB
- · Replies 6 ·
Fluid Mechanics - U-tube and mercury
- jkb
- · Replies 1 ·
Help with Forces: Calculate Net Force on 1600.3 kg Car
- ant124m
- · Replies 7 ·
Need help on this Light bulb Filament Temperature with emissivity and δ given
- sickid
- · Replies 1 ·
Measuring Height to Calculate Froghopper Jump Height
- parwana
- · Replies 2 ·
Kinematics (constant acceleration)
- HelenaBeena
- · Replies 5 ·
Need Help Solving Physics Problem with T, Dx, and Angle
- Stephanie
- · Replies 2 ·
Find time if boxes moved X distance
- sweetdaisy186
- · Replies 4 ·
Kinematic Equations - Manipulating them.
- Huynher
- · Replies 1 ·
What is the Initial Velocity of a Ball Thrown off a Cliff?
- QuantumKing
- · Replies 4 ·
Solving for Earth's Deflection of a Baseball Throw
- panagiotiskorel
- · Replies 1 ·
How Do You Calculate Constant Deceleration to Prevent a Train Collision?
- OVB
- · Replies 5 ·
How fast are we traveling around the galaxy?
- kens
- · Replies 1 ·
Vector Direction (west of North)
- baqi
- · Replies 12 ·
Box Mass and Friction: Calculating Time Before Fall
- trajan22
- · Replies 2 ·
Shipping Crate: Speed to Reach Top of 8m Ramp at 37°
- trajan22
- · Replies 7 ·
Voltage and Electro Potential Energy
- himura137
- · Replies 4 ·
What is the average deceleration during braking?
- needhelp83
- · Replies 2 ·
Find Velocity of 2nd Ball Thrown at 25 Degrees - 6.32 m/s
- BunDa4Th
- · Replies 2 ·
Relative Motion of River in Two Dimensions
- johndoe3344
- · Replies 3 ·
Forces, blocks, cords, and springs
- mybsaccownt
- · Replies 5 ·
Electric Fields: Help Needed for Questions on Charge and Magnitude
- swami85
- · Replies 1 ·
Proving maximum speed of a mass on a spring is 2πfA
- Fittler
- · Replies 2 ·
Archer on a Cliff: Can Arrow Reach Mark?
- dboy83
- · Replies 10 ·
Quantum Theory - The Photo-Electric Effect
- lando45
- · Replies 3 ·
How Do You Solve the Block on Wedge Problem with a Moving Wedge?
- konichiwa2x
- · Replies 1 ·
Valid Units of Measure for Trig Argument
- Ronnin
- · Replies 5 ·
Another Laws of Motion question
- konichiwa2x
- · Replies 2 ·
Quantum Entanglement Explained: Teleportation & String Theory
- semc
- · Replies 1 ·